YOU Hailu Institute of Geology, Chinese Academy of Geological Sciences, Beijing XU Xing, WANG XiaolinInstitute of Vertebrate Paleontology, Paleoanthropology Chinese Academy of Sciences, Beijing .2003. A New Genus of Psittacosauridae (Dinosauria: Ornithopoda) and the Origin and Early Evolution of Marginocephalian Dinosaurs[J]. Acta Geologica Sinica(),77(1):
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